一些新式的显示器有一个断路器，如果电源出现问题则会断开。

Some new displays have a circuit breaker that trips in case there is a problem with the power supply.

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断路器是闭合的还是断开的。

Is the circuit breaker closed or opened?

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如果你看到电火花或破损的电线，或嗅到了绝缘体烧焦的味道，断开主开关柜里活断路器的电源。

If you see sparks or broken or frayed wires, or if you smell burning insulation, turn off the electricity at the main fuse box or circuit breaker.

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